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Active sensing refers to the process of choosing or tuning a set of sensors in order to track an underlying system in an efficient and accurate way. In a wireless environment, among the several kinds of features extracted by traditional…

Information Theory · Computer Science 2016-05-30 Alessandro Biason , Urbashi Mitra , Michele Zorzi

Speech enhancement (SE) aims to extract the clean waveform from noise-contaminated measurements to improve the speech quality and intelligibility. Although learning-based methods can perform much better than traditional counterparts, the…

Audio and Speech Processing · Electrical Eng. & Systems 2024-09-23 Haoyin Yan , Jie Zhang , Cunhang Fan , Yeping Zhou , Peiqi Liu

Recent advancements in wireless perception technologies, including mmWave, WiFi, and acoustics, have expanded their application in human motion tracking and health monitoring. They are promising alternatives to traditional camera-based…

Networking and Internet Architecture · Computer Science 2025-04-08 Yin Li , Rajalakshmi Nandakumar

In this paper, we investigate the usage of autoencoders in modeling textual data. Traditional autoencoders suffer from at least two aspects: scalability with the high dimensionality of vocabulary size and dealing with task-irrelevant words.…

Machine Learning · Computer Science 2015-12-15 Shuangfei Zhai , Zhongfei Zhang

Recent research has shown that human motions and positions can be recognized through WiFi signals. The key intuition is that different motions and positions introduce different multi-path distortions in WiFi signals and generate different…

Signal Processing · Electrical Eng. & Systems 2018-10-30 Heju Li , Xukai Chen , Haohua Du , Xin He , Jianwei Qian , Peng-Jun Wan , Panlong Yang

Humans naturally adapt to diverse environments by learning underlying rules across worlds with different dynamics, observations, and reward structures. In contrast, existing agents typically demonstrate improvements via self-evolving within…

Automatic Emotion Detection (ED) aims to build systems to identify users' emotions automatically. This field has the potential to enhance HCI, creating an individualised experience for the user. However, ED systems tend to perform poorly on…

Human-Computer Interaction · Computer Science 2023-07-27 Annanda Sousa , Karen Young , Mathieu D'aquin , Manel Zarrouk , Jennifer Holloway

Network Intrusion Detection Systems (NIDS) are essential tools for detecting network attacks and intrusions. While extensive research has explored the use of supervised Machine Learning for attack detection and characterisation, these…

Cryptography and Security · Computer Science 2026-04-23 Georgios Anyfantis , Pere Barlet-Ros

Wearable sensor based human activity recognition is a challenging problem due to difficulty in modeling spatial and temporal dependencies of sensor signals. Recognition models in closed-set assumption are forced to yield members of known…

Computer Vision and Pattern Recognition · Computer Science 2024-04-24 M Tanjid Hasan Tonmoy , Saif Mahmud , A K M Mahbubur Rahman , M Ashraful Amin , Amin Ahsan Ali

Non-intrusive presence detection of individuals in commercial buildings is much easier to implement than intrusive methods such as passive infrared, acoustic sensors, and camera. Individual power consumption, while providing useful feedback…

Human-Computer Interaction · Computer Science 2017-05-03 Ming Jin , Ruoxi Jia , Zhoayi Kang , Ioannis C. Konstantakopoulos , Costas Spanos

Autonomous driving has received a lot of attention in the automotive industry and is often seen as the future of transportation. Passenger vehicles equipped with a wide array of sensors (e.g., cameras, front-facing radars, LiDARs, and IMUs)…

Machine Learning · Computer Science 2022-05-27 Andrey Pak , Hemanth Manjunatha , Dimitar Filev , Panagiotis Tsiotras

In recent years, Wi-Fi sensing has garnered significant attention due to its numerous benefits, such as privacy protection, low cost, and penetration ability. Extensive research has been conducted in this field, focusing on areas such as…

Computer Vision and Pattern Recognition · Computer Science 2025-05-13 Zijian Zhao , Tingwei Chen , Zhijie Cai , Xiaoyang Li , Hang Li , Qimei Chen , Guangxu Zhu

Recognizing speaking in humans is a central task towards understanding social interactions. Ideally, speaking would be detected from individual voice recordings, as done previously for meeting scenarios. However, individual voice recordings…

Computer Vision and Pattern Recognition · Computer Science 2024-03-05 Jose Vargas Quiros , Chirag Raman , Stephanie Tan , Ekin Gedik , Laura Cabrera-Quiros , Hayley Hung

This article is a position paper which introduces the paradigm of ``Massive Wireless Human Sensing'', i.e. an infrastructure for wireless human sensing based on a plethora of heterogeneous wireless communication signals. More specifically,…

Networking and Internet Architecture · Computer Science 2025-08-14 Mauro De Sanctis

Recompositing channel state information (CSI) from the beamforming feedback matrix (BFM), which is a compressed version of CSI and can be captured because of its lack of encryption, is an alternative way of implementing firmware-agnostic…

Signal Processing · Electrical Eng. & Systems 2022-06-06 Hiroki Shimomura , Yusuke Koda , Takamochi Kanda , Koji Yamamoto , Takayuki Nishio , Akihito Taya

Current LiDAR-based 3D object detectors for autonomous driving are almost entirely trained on human-annotated data collected in specific geographical domains with specific sensor setups, making it difficult to adapt to a different domain.…

Computer Vision and Pattern Recognition · Computer Science 2023-06-05 Jenny Xu , Steven L. Waslander

Unsupervised anomalous sound detection (ASD) aims to detect unknown anomalous sounds of devices when only normal sound data is available. The autoencoder (AE) and self-supervised learning based methods are two mainstream methods. However,…

Sound · Computer Science 2023-10-16 Jian Guan , Youde Liu , Qiuqiang Kong , Feiyang Xiao , Qiaoxi Zhu , Jiantong Tian , Wenwu Wang

Noisy labels, inevitably existing in pseudo segmentation labels generated from weak object-level annotations, severely hampers model optimization for semantic segmentation. Previous works often rely on massive hand-crafted losses and…

Computer Vision and Pattern Recognition · Computer Science 2024-01-23 Shenwang Jiang , Jianan Li , Ying Wang , Wenxuan Wu , Jizhou Zhang , Bo Huang , Tingfa Xu

The recognition of human activities based on WiFi Channel State Information (CSI) enables contactless and visual privacy-preserving sensing in indoor environments. However, poor model generalization, due to varying environmental conditions…

Computer Vision and Pattern Recognition · Computer Science 2024-11-26 Julian Strohmayer , Martin Kampel

This paper introduces a novel neural network (NN) structure referred to as an ``Auto-hybrid precoder'' (Auto-HP) and an unsupervised deep learning (DL) approach that jointly designs \ac{mmWave} probing beams and hybrid precoding matrix…

Networking and Internet Architecture · Computer Science 2025-03-12 Asmaa Abdallah , Abdulkadir Celik , Ahmed Alkhateeb , Ahmed M. Eltawil
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